Tours leave from near the old stock exchange and head up through the city centre before crossing over one of the bridges into Vila Nova de Gaia
The tour then runs through Gaia, taking in views of the port wine lodges before descending down to river level and crossing back over to Porto
It then continues along the river under the next three bridges before turning round and heading back to the start
A multi-lingual pre-recorded commentary runs for the whole of the trip